Can I add bullet point in the textarea block?

If I want to use HTML, CSS to add bullet points in the textarea block, Can I add the code below?
textarea {
display: list-item;
list-style-type: dist;
}
or Can I add bullet points by jQuery? like below
$(".survey").focus(function() {
  if(document.getElementById('survey').value === ''){
    document.getElementById('survey').value +='• ';
}
});
$(".todolist").keyup(function(event){
var keycode = (event.keyCode ? event.keyCode : event.which);
  if(keycode == '13'){
    document.getElementById('survey').value +='• ';
}
var txtval = document.getElementById('survey').value;
if(txtval.substr(txtval.length - 1) == '\\n'){
document.getElementById('survey').value = txtval.substring(0,txtval.length - 1);
}
});

If I can, where I can find the textarea HTML code?